'Portrait of Young Woman with Unicorn' (1506) by Raffaello Sanzio da Urbino a.k.a. Raphael. Oil on panel. 65 cm × 61 cm (26 in × 24 in). Location: Galleria Borghese, Rome, Italy. // Notes on this portrait (via Wikipedia): The portrait appears to have been influenced by the well-known work, 'Mona Lisa' (also known by the titles 'La Gioconda' or 'La Joconde,' or 'Portrait of Lisa Gherardini'), painted by Leonardo da Vinci between 1503 and 1506. The work was of uncertain attribution until recent times. In the 1760 inventory of the Galleria Borghese (the painting's past and current location), the subject of the painting was identified as Saint Catherine of Alexandria and attributed to Italian Renaissance painter Pietro Perugino. A restoration of the painting in 1934-36 confirmed art historian Roberto Longhi's hypothesis that the work was actually by Raphael, and the removal of heavy repainting revealed the unicorn, traditionally a symbol of purity in medieval romance, in place of a Saint Catherine's wheel. The breaking wheel, now known as the Catherine wheel, was a torture device used for capital punishment. Legend has it that St. Catherine of Alexandria was sentenced to be executed on one of these devices. The wheel miraculously broke when she touched it; she was then beheaded. Later restoration work on the painting in 1959 revealed the image of a dog, even earlier than the unicorn, also a symbol of fidelity. The identity of the young woman, and the client for whom the work was done, have never been identified. // Found by @RandomMagicTour (https://twitter.com/randommagictour) - Sasha Soren

Portrait of a Man, Possibly an Architect or Geographer - Oil on Copper Peter Paul Rubens / This is one of the very few paintings by Rubens known to have been painted before he left Antwerp for Italy in May 1600.